package setclass;

import java.util.LinkedHashSet;
import java.util.Objects;
import java.util.Set;

public class LinkedSetDemo2 {
    public static void main(String[] args) {
        //使用LinkedSet查看存取是否有序
        Set<Student> set = new LinkedHashSet<>();
        set.add(new Student("张三z",18));
        set.add(new Student("李四zz",18));
        set.add(new Student("王五zzz",18));

        for (Student student : set) {
            System.out.println( student);
        }
        //删除张三
        set.remove(new Student("张三z",18));
        for (Student student : set) {
            System.out.println( student);
        }

    }
}
class Student{
    private String name;
    private int age;
    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public Student() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Student student = (Student) o;
        return age == student.age && Objects.equals(name, student.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, age);
    }

    @Override
    public String toString() {
        return "姓名：" + name + "，年龄：" + age;
    }

}
